Coin slot



Patented Got. 16, 1923.

UNITED srarEsr 'r ENT QFFIQE.

PETER GYSBERT THOI/IAS DE VILLIE RS, OF PRETORIA, TRANSVAAL, SOUTHAFRICA. ASSIGNOR OF ONE HALF TO ARTHUR BOG-ERSJENKINS, 013 DUBBAN,I-TA'IAL, UNION OF SOUTH AFRICA.

corn SLOT.

Application filed. December 3, 1920., Serial No. 427,951.

7 '0 aZZ w ham it may concern 7 Be it known that PETER GYsBnR'r THOMASon VILLIIJRS, a British subject, residing at Department of Posts andTelegraphs, General Post Oflice, Pretoria, Transvaal Province, of theUnion of South Africa, has invented certain new and useful Improve mentsRelating to Coin Slots, of which the following is a specification. I

The present invention has reference to coin-in-the-slot machines, inwhich provision is made for insertion of coins of differentdenominations, e. g, certain types of telephone call boxes.

The purpose of the invention is to prevent the simultaneous insertion ofcoins of different denominations; and a further purpose is i theinsertion of coins in the1 P whilst the latter covers the right hand endupper wall of the cover of a telephone payment box in which are formedthe slots 2, 3, 4: of progressively increasing size, to receive, forinstance, three-penny pieces, sixpenny pieces and shillings. Secured tothe wall 1 is a casting 5, open above the slots 2, 3, t and providingbehind said slots tablets 6 on whichthe values of the differentdenominations are imprinted. In front of each slot the casting is formedwith a chan nel 7 which isflared at the front/and provides a meansfor'readily guiding the coin into the slot, the coin being simply slid,on

edge, along the surface 1 towards the proper slot when the channel 7guides the same accurately into the slot; the tablets 6 forming stops toprevent coins from passing beyond the. slots.

In a telephone payment box it is usual for the insertion of the coinorcoins to be signalled to the exchange, and for this reason it isdesirable to prevent more than one coin being inserted at atime. Toensure this there is arranged beneath the slots 2, 3, 4 a

whereby the left hand ends of slots 3 are covered. The extent to whichthe plates runway 8 in which plates 9, 9 are free to slide in the lineof the slots. The outward movement of said plates is limited by stops 10and they are provided with projecting arms 11 by which they make contactwith one another. Said plates 9, 9 partially blind the slots, to theextent of providing passage room for only one coin at a time. As shownin Fig. III, assuming that the smallest slot 2is fully uncovered for theinsertion of a coin, then the plate 9 is pushed over to cover the righthand end of the slot 3, and it also pushes over the plate 9 so as partlyto cover ,the right hand end of slot 4. shown in Fig.

Again as IV, the centre slot can only be fully open when the plates 9,9" are moved fully to the right and left, so that the former covers theleft hand end of slot 2,

of slot 4. To enable a coin to be inserted in slot a, both plates 9, 9must be pushed over to the right as indicated in Fig. V, and

overlap the slots is so limited that the in sertion ofa coin into anyslot which is partially closed by its plate or plates 9, 9, readilythrusts the latter out of the way of the coin provided the other slotsare free.

I claim l. Coin in=the-slot apparatus having several slots adapted toreceive COlIlS of different denominations comprising a series of platesshdably mounted end to end beneath the slots, the plates being of such alength that the insertion of a coin in one slot alters the relativepositions of the plates so that the other slots are partially closed,means being providedwhereby no slot can be com pletely closed. 3

2. Coin-in-the-slot apparatus having several slots adapted to receivecoins of different denominations comprising a runway adapted to carryslidably, a series of plates having projecting'arins whereby they makecontact with one another endways, said arms being at all times clear ofthe slots, the plates and arms being of such a length that the insertionof a coin in oneslot moves the plates so that the other slots are onlypartially closed.

In testimony whereof I affix my signature.

PETER'GYSBERT THOMAS de VILLIERS.

